Height-measuring attachment for scales.



G. B. CARR. HEIGHT MEASURING ATTACHMENT FOR SCALES. urmcmmn rum) APR.15,1911.

1 ,001 ,8151 Patented Aug. 29, 1911.

CHARLES B.

CARE, OF ST.

JOHNSIBURY, VERMONT.

HEIGHT-MEASURING ATTACHMENT FOR SCALES.

Specification of Letters Patent.

Patented Aug. 29, 1911.

Application filed April 15, 1911. Serial No. 621,435.

To all whom it may concern:

Be it known that I, CHARLES B. CARR, a citizen of the United States,residing at St. J ohnsbury, in the county of Caledonia, State ofVermont, have invented certain new and useful Improvements inHeight-Measuring Attachments for Scales, of which the following is adescription, reference being had to the accompanying drawing and to theletters and figures of reference marked thereon.

My invention relates to an improvement in scales, especially of theplatform type, and more particularly to a height measuring attachmentfor scales such as are used by physicians, or in baths, gymnasiums, orthe like. As heretofore constructed so far as I am aware, the measuringrods used in connection with such scales began at four feet, and weregraduated up to seven feet, that is, measuring nothing under four feet.

There is demand to-day in public schools and in other places, formeasuring rods that will measure from two feet six inches, and it is theobject of my invention to provide primarily a device in which thestationary part or the part in which the telescoping graduated rodmoves, is graduated up to a certain height, while from that point beyondthe telescoping rod carries additional graduations.

Furthermore, the invention includes certain details of construction, allas hereinafter described and referred to in the appended claims.

In the accompanying drawings which illustrate the invention; Figure 1 isa side elevation of a platform scale to which my attachment is applied;Fig. 2 is a front View of the height measuring attachment; Fig. 3 is asectional view; and Fig. l is a top plan view.

In these drawings, 1 represents the base of the scale; 2 the platformthereon; and 3, the scale column or standard.

4 represents a hollow rod which is graduated in feet and inches up to acertain height, and is supported by brackets or braces 5, from the scalecolumn or standard 3.

6 represents a hollow tubular rod telescoping within the tube 4: andwhich is split at its lower end as shown at 7 in order to frictionallyengage the inside wall of the tube 4:.

Within the telescoping tube 6, is secured at one end a spring 8supporting upon its upper face a plunger 9, and pivoted within said tube6, is one end of the arm or bracket 10, which carries at its outer endthe head rest 11. The spring actuating plunger 9 normally tends to keepthe arm 10 in the horizontal position shown in full lines in Fig. 3, orin vertical position shown in dotted lines in Fig. 3. When it is desiredto use the scale for the measuring of heights, the arm 10 is swungupwardly on its pivot 12, and the vertical part of said horizontal armforces down the plunger against the pressure of the spring, until theend of the vertical part of the arm has passed the dead center when theplunger tends to hold the arm in the position shown in dotted lines inFig. 3. When it is desired to use the head rest and the arm 10 is movedtoward horizontal position, the spring actuated plunger keeps the samein said horizontal position.

It will be understood that various modifications and changes may be madewithout departing from the spirit of the invention.

Having thus particularly described my invention, what I claim as new anddesire to secure by Letters Patent, is

1. The combination with a scale, a height measuring attachmentcomprising a hollow rod, a hollow rod telescoping therein and providedwith a split lower end for frictional engagement with the inner wall ofthe rod within which it telescopes and a head rest arm pivoted at oneend within the inner rod, and means for holding it in normal position.

2. In combination with the hollow rods, one telescoping within theother, a spring actuated plunger within the inner rod, and a head restarm pivoted within said inner rod, and held in either of its normalpositions by the spring actuated plunger.

In testimony whereof I affix my signature, in presence of two witnesses.

CHARLES B. CARR.

Witnesses:

G- C. FRYE, J- S. ELLIs.

Copies oi this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

